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VC Intelligence Report

Mailboxen

Developer Tools — Secure Mail Server in a box: set up your mail server in <5m [Tech]
Developer Toolsest. 2014
■ Inactive
Verdict from HTTP liveness real
last probed Aug 19, 2026
Pulse 0.0 · 1/4
0.0
Pulse Index
1/4 families · real
0.0
30-day Δ
pulse momentum · real
16
HTTP probes
liveness history · real
4
Functional tags
observed attributes · real
Risk read derived from observed signals

Observed dead: the site no longer answers as a live product. Pulse has been flat over the last 30 days. Observation is liveness-only: no tracked press, repository, or traffic rank — existence is confirmed, momentum is unobserved.

HTTP liveness

real
16 probes · Jun 16, 2026Aug 19, 2026aliveredirecteddeadunverified

Signal telemetry

4 families · 1 observed · observed only
Liveness probereal
alive in 0% of 16 probesavg response 1237 ms
Developer tractionchecked · none
No public repository linked — GitHub signals are not tracked for this product.
Press & sentimentchecked · none
No coverage found in the tracked press corpus. Absence of press is itself a signal at this stage.
Web footprintreal
resolved host
mailboxen.herokuapp.com
edge
direct origin
server
heroku-router
Tranco rank
unranked
Domain age & certificate data not yet collected

Analyst read

generated from the observed metrics above · no external narrative

Mailboxen's site returned a hard-dead response when we last probed it on Aug 19, 2026, so we mark it inactive. It has fewer than two observed signal families, so no Pulse Index is composed — the evidence strip shows what is and isn’t present. Observed footprint: 4 functional tags. It has no curated competitive-alternative edges yet, so the comparable set below is functional tag-similarity — read it with the confidence flags.

Comparable set

curated alternatives → functional tag-similarity
CompanyBasisOverlapPulse30d ΔStatus
EzPaaSdev-toolssimilar75%0.00.0■ inactive
Cryptoshiftsecuritytag-overlap75%40.00.0● live
ControlMQdev-toolssimilar67%30.4-9.6● live
ShellHubdev-toolssimilar67%46.00.0● live
Preservesecuritytag-overlap60%8.00.0— unverified
N|Soliddev-toolssimilar60%48.90.0● live
StorPooldev-toolssimilar60%15.20.0— unverified
Ajentidev-toolssimilar60%19.50.0→ redirected

Confidence reflects source and category coherence: curated = an editorially linked alternative; similar = strong functional tag-overlap in the same category; tag-overlap = shared tags only and may be noisy. Overlap is the shared functional-tag ratio (Jaccard) for tag-matched rows. Pulse is the observed-activity index real and 30d Δ its signed month change; a dash means insufficient observed history, never zero.

Structure

observed attributes
Business modelunknown
Liveness tiersunset
Competitive alternativesnone linked
Open sourceNo
Public APINo
Free tierNo
Enterprise tierNo

Funding & team

not in source

No disclosed funding in our sources. Funding data covers only ~1% of the corpus (462 rounds across 79K products), so absence here is unknown, not zero— we don't estimate a number we can't source.

RAW TELEMETRY last 14 probes
PROBEDHTTPORIGIN → RESOLVEDSERVERMSVERDICT
2026-08-19 14:43Z404mailboxen.herokuapp.comheroku-router110dead_404
2026-08-11 13:55Z404mailboxen.herokuapp.comheroku-router4755dead_404
2026-08-08 23:35Z404mailboxen.herokuapp.comheroku-router274dead_404
2026-08-05 19:28Z404mailboxen.herokuapp.comheroku-router913dead_404
2026-07-30 18:44Z404mailboxen.herokuapp.comheroku-router526dead_404
2026-07-26 15:26Z404mailboxen.herokuapp.comheroku-router1032dead_404
2026-07-18 09:23Z404mailboxen.herokuapp.comheroku-router2621dead_404
2026-07-12 09:22Z404mailboxen.herokuapp.comheroku-router1558dead_404
2026-07-04 13:29Z404mailboxen.herokuapp.comheroku-router704dead_404
2026-06-23 14:39Z404mailboxen.herokuapp.comheroku-router1437dead_404
2026-06-21 17:43Z404mailboxen.herokuapp.comheroku-router244dead_404
2026-06-21 17:43Z404mailboxen.herokuapp.comheroku-router213dead_404
2026-06-20 07:07Z404mailboxen.herokuapp.comheroku-router1325dead_404
2026-06-19 05:33Z404mailboxen.herokuapp.comheroku-router1605dead_404
Full redirect chains, response headers, and DNS records are not captured by the current probe.
Launch Sentinel tear sheet · Mailboxen · as of 2026-08-28 · launchsentinel.com/reports/mailboxen · liveness, pulse and press figures are observed data with provenance shown per panel.